The aswang feed on babies in mothers' wombs. According to Estrella Estoco, the salak tree/trunk should be placed vertically under the silong (floor ceiling) of a pregnant woman's house. The aswang will bite anything before it leaves the silong of the house. The aswang will bite anything before it leaves the silong of the house. If it bites the salak tree 'madudunot iya baba hasta mamatay,' it will die.